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Seagull Models EXTRA 330LX, Assembly Manual, Page: 6 / 32

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Seagull Models EXTRA 330LX Assembly Manual Download Page 6

EXTRA 330LX

Instruction Manual.

6

ELEVATOR SERVO INSTALLATION.

 1) The elevators have been pre-hinged 

and glued to the stabs and are ready for 

flight. No other steps are necessary for 

hinging.

INSTALL  ELEVATOR CONTROL HORN.

Elevator fiberglass control horn.

Epoxy.

Epoxy.

Fiberglass control horn

2) Attach the extension to the servo lead 

and secure with Safety Clip, safety wire, 

tape or other method. Ensure the plugs 

will not come apart from vibration or 

light tension.

  Repeat all the above steps for the other 

wing.

100mm

Summary of Contents for EXTRA 330LX

Page 1: ...ingspan 82 0 in 208 2 cm Wing area 1349 4 sq in 87 1 sq dm Weight 16 3 16 8 lbs 7 4 7 6kg Length 77 7 in 197 3 cm Engine 50cc 55cc gasoline Radio 6 channels with 6 servos Graphics and specifications may change without notice Code SEA274 EXTRA 330LX ...

Page 2: ...TION WARNING Please be aware that this aeroplane is not a toy and if assembled or used incorrectly it is capable of causing injury to people or property WHEN YOU FLY THIS AEROPLANE YOU ASSUME ALL RISK REPONSIBILITY If you are inexperienced with basic R C flight we strongly recommend you contact your R C supplier and join your local R C model Flying Club R C Model Flying Clubs offer a variety of tr...

Page 3: ...3 ...

Page 4: ... other steps are neces sary for hinging 2 Layout the servo on the wing to test fit the installation and ensure servo lead is the correct length 3 Attach the extension to the servo lead and secure with Safety Clip safety wire tape or other method Ensure the plugs will not come apart from vibration or light tension 4 Fasten the pull string from the servo hole to the male plug of the servo exten sion...

Page 5: ...the leading edge of the wing Mark and drill location of servo mounting holes 6 Install servo with servo mounting screws Thin CA 38mm INSTALLING THE AILERON PUSHROD M3x15 Socket Head Cap Screw Flat washer Lock nut M3x15 Socket Head Cap Screw Lock nut Flat washer ...

Page 6: ...r steps are necessary for hinging INSTALL ELEVATOR CONTROL HORN Elevator fiberglass control horn Epoxy Epoxy Fiberglass control horn 2 Attach the extension to the servo lead and secure with Safety Clip safety wire tape or other method Ensure the plugs will not come apart from vibration or light tension Repeat all the above steps for the other wing 100mm ...

Page 7: ...through the el evator servo mounting hole 4 Mark and drill location of servo mounting holes Thin CA 38mm 5 Install servo with servo mounting screws ELEVATOR PUSHROD INSTALLATION M3x15 Socket Head Cap Screw Flat washer Lock nut ...

Page 8: ...uction Manual 8 INSTALL RUDDER CONTROL HORN Repeat all the above steps for the other elevator M3x15 Socket Head Cap Screw Lock nut Flat washer Fiberglass control horn 38mm Epoxy Use scotch tape to avoid pushrod drop out ...

Page 9: ...r is straight when the cables are at tached 3 Thread the rudder cable through a brass swage tube then the threaded cou pler and back through the brass swage tube on both sides Pull light tension on the cable through the coupler on both sides as shown M3x15 Socket Head Cap Screw Lock nut Flat washer 5 Crimp the brass tube with a crimping tool or pliers 4 Loop the cable back through the brass swage ...

Page 10: ...ded coupler hole and back through the brass swage tube as shown 6 Cut off excess cable as shown 7 Mark and use a 1 16 bit to drill the rudder servo 9 Thread cable through brass swage tube 8 Feed one rudder cable through the pre installed cable exit tube in the rear of the fuse toward the front of the fuse Repeat for other side Thin CA ...

Page 11: ...liers 14 Attach ball links to the rudder servo arm and then attach the servo arm to the rudder servo as shown NOTE Cable is installed crossed X not parallel 13 Cut off excess cable as shown 15 Attach the aluminum tube to com bine two elevator as below pictures ...

Page 12: ...ruction Manual 12 TAILWHEEL INSTALLATION Locate items necessary to install tail wheel Place a drop of Blue Loctite on tail wheel strut mounting screws M4x15 Socket Head Cap Screw Washer Fuel Tubing M3x15mm Blue Loctite ...

Page 13: ...DING GEAR TO FUSELAGE 1 The blind nuts for securing the land ing gear are already mounted inside the fuselage 2 Using the hardware provided mount the main landing gear to the fuselage 3 Place the fuselage inverted on the workbench in a suitable stand Set the landing gear in place and use a screw drive to secure the landing gear to the fu selage using bolts M4x25mm and wash ers Make sure to use the...

Page 14: ...EXTRA 330LX Instruction Manual 14 M4x25mm Washer Use lock nut to secure landing gear tighen into fuselage Install gear cover into landing gear 3x10mm ...

Page 15: ...eel pant slot over the axle bolt as shown Slide the wheel pant slot over the flat sides of the axle bolt and align blind nuts in wheel pants with mounting holes in landing gear When all bolt holes are aligned tighten axle in place Thin CA 3x10mm M3x4mm ...

Page 16: ... tightening Use blue Loctite on the bolts before final tightening M3x4mm M3x10mm Washer Align mounting template to front of firewall Locate the laser cut engine mounting template MOUNTING THE ENGINE NOTE It s the canister mount which is used to assemble the canister exhaust sys tem It s only for extra reference purpose for your model ...

Page 17: ...rilled ready for engine mounting Using mounting bolts and washers mount engine to firewall Tighten mounting bolts and secure en gine to firewall 1 Use a 1 4 bit to drill a pushrod exit hole in the firewall in line with the en gine carburetor throttle arm 2 Assemble ball link to threaded end of pushrod THROTTLE SERVO INSTALLATION ...

Page 18: ...nnector in the servo arm as same as picture below 5 Install throttle servo into servo mount ing tray Servo arm Adjustable servo connector Loctite secure Thin CA 6 Reinstall the servo horn by sliding the connector over the pushrod wire Center the throttle stick and trim and install the servo horn perpendicular to the servo center line Epoxy ...

Page 19: ...to closed Use a 2 5mm hex wrench to tighten the screw that secures the throttle pushrod wire Make sure to use threadlock on the screw so it does not vibrate loose IGNITION INSTALLATION 3 Thread nylon tie through mounting holes 4 Connect ignition module to pickup line of engine Secure with Safety Clip safety wire tape or other method Ensure the plugs will not come apart from vibra tion or light ten...

Page 20: ...ual 20 Trim and cut INSTALLING THE RECEIVER SWITCH Install the switch into the precut hole in the side in the fuselage 3 32 Hole Switch Switch INSTALLING THE ENGINE SWITCH Trim and cut FUEL TANK ASSEMBLY Please see below pictures ...

Page 21: ...y into the tank with the vent tube at the top of the tank Slide the fuel tank into the fuselage Use the T fiting from the fuel dot to connect lines from the clunk to the carburetor Secure all connections using tie wraps 3 Secure the rubber stopper with set screw Take care not to strip threads by over tightening set screw FUEL TANK INSTALLATION ...

Page 22: ...ry COWLING 1 Gather the materials as shown below 2 Measure and mark the center of the template material as shown Note You will use this center mark dur ing a later step when aligning template with cowl 3 Measure and mark the center of the bottom of the fuselage as shown Mount cowling to fuse and transfer center line on fuse to bottom of cowl ...

Page 23: ...t a hole for the muffler exhaust stacks to pass through Note This will allow you to pull the tem plate up next the engine cylinder head 6 Trace around the head of the engine being careful to keep the template in the same location 7 Use a hobby knife to cut out the hot air exit opening as shown 8 Check the fit of the template at this time It may be necessary to make small adjustments to the cutout ...

Page 24: ...scratch the cowl 9 Fit template flush with rear of cowl and align center marks of template and cowl Tape template to the bottom of cowl Use a felt tip marker to transfer the template cutout pattern to the cowl and mark cut location 13 Mark and tape the cowl to the fuse lage using low tack tape 12 Install the cowl and check that every thing fits correctly and does not come in contact with the cowl ...

Page 25: ...rrect before drill ing each hole M3x15mm Washers Fuel tubing ELECTRIC POWER CONVERSION 1 Locate the items neccessary to install the electric power conversion included with your model 2 Recommend the items necessary to in stall the electric power conversion parts included with your model Motor 360 6000 Watt Propeller 24x10 25x12 ESC 160A 200A 12S Lipo ...

Page 26: ...he electric motor box and fire wall Using epoxy and balsa stick to se cure the motor box to the firewall Please see pictures below M5x30mm 4 Attach the motor to the front of the electric motor box using four 4mm blind nut four M5x20mm hex head bolts to se cure the motor Please see picture shown 5mm Blind nut M5x20mm 6 5mm ...

Page 27: ...wo sided tape and tie wraps Connect the appropriate leads from the speed control to the mo tor Make sure the leads will not interfere with the operation of the motor Speed control Open the air exit hole as shown Battery INSTALLING THE SPINNER Install the spinner backplate propeller and spinner cone ...

Page 28: ...ner cone If it does use a sharp modeling knife and carefully trim away the spinner cone where the propel ler comes in contact with it ATTACHMENT WING FUSELAGE Attach the aluminum tube into fuselage Insert two wing panels as pictures below Wing tube Wing bolt M4x15mm Washers Fuel tubing ...

Page 29: ... cockpit or you can order others scale pilot fig ures made by SG Models They are avail able at SG Models distributors If you are going to install a pilot figure please use a sanding bar to sand the base of the figure so that it is flat 3 Position the pilot figure on the cock pit floor as shown Use epoxy to glue the base of the pilot figure please see pictures as shown Epoxy 100mm 2x8mm ...

Page 30: ...NCING An important part of preparing the air craft for flght is properly balancing the model 1 Attach the wing panels to the fuselage Make sure to connect the leads from the aileron to the appropriate leads from the receiver Make sure the leads are not ex posed outside the fuselage before tight ening the wing bolts Your model should be flght ready before balancing 2 The recommended Center of Grav ...

Page 31: ...grees Down 25 0 Degrees Elevator high rate Elevator normal rate 70 exponential 40 exponential Up 51 0 Degrees Up 12 5 Degrees Down 51 0 Degrees Down 12 5 Degrees Rudder high rate Rudder normal rate 45 exponential 40 exponential Right 47 0 Degrees Right 24 0 Degrees Left 47 0 Degrees Left 24 0 Degrees CONTROL THROWS ...

Page 32: ... stick to the right The right aileron should move up and the other aileron should move down If it does not flip the servo reversing switch on your transmitter to change the direction 1 Completely charge your trans mitter and receiver batteries before your first day of flying 2 Check every bolt and every glue joint in the EXTRA 330LX to en sure that everything is tight and well bonded 3 Double chec...

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